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51 Threads found on Dft Asic
In real life, PnR engineers start with some work before the final version of RTL is available. But they can accept changes up to a certain time (in reality a synth & dft inserted netlist). As per my knowledge RTL signoff or RTL freeze, is that version of RTL after which no more changes will be allowed in it. Otherwise it would be very costly for
Cannot directly answer your question as I have never done STA on a latch based design. In asic designing, within the design team, if you give a synth. design containing latches (which is not intended) the dft engineer should be shouting back at you! Better to fix such issues at the design stage and then go for STA and other asic design (...)
hi, Why dft insertion is done after synthesis ( Gate Level Netlist ). What are the advantage of dft insertion in GLN over dft insertion in RTL level ?? Thanks In advances plz share ur views .
When you do asic design, you should ensure that you design is testable using dft methodologies like SCAN BIST, MBIST and at speed test control if needed. This means that all flops reset and clock should be drivable with test reset and test clock during test mode. Normally we would be adding a test mux to mux between the test clock and functional cl
Simple design flow from rtl to foundry: This flow doesn't include dft process, like mbist, scan chain, atpg & bsd. If dft process above is included, the flow will be a bit longer.
Hi, Some points to add to the above content for some one who doesn't know. Some Companies prefer, at the Synthesis stage only scan insertion will happen (or) After dft, again Synthesis will be performed for better optimization. this depends upon which tools they are using & other factors as well. Formal Verification
Hi does someone has some good dft reding materials? Thanks!!
I've read the book Advanced asic Chip Synthesis: Using Synopsys? Design Compiler? Physical Compiler? and PrimeTime?, Second Edition, and in chap 8 there contents for dft, but after typing some of the commands in dc_shell(ver B2008.09), I found almost all of them are not supported by this new version, like: check_test create_test_clock set_test_h
What do you suggest to stay current with asic, dft, and other technical stuff while being out of work. Hardware tools are not available over the Internet to practice, what one can do to stay current? Thanks.
Hi folks, I am an international student and graduate from Carnegie Mellon last December. I am looking for asic related job, such as digital engineer, hardware designer or dft designer. If you have opening in your companies or from friends', please leave your message or mail me I appreciate your help, have a good
Hello Friend, dc_shell-t indicates dftC in turbo mode in which 'set_scan_signal' can not be used instead use 'set_dft_signal'. 'set_scan_signal' will be accepted only dftC in DB mode
hi, i have master degree in microelectronics engineering and have 2 years experiencs in R&D based ic design center, also have experience on fabrication process, therefor find myself suiteable for backend design and dft. i have also seen your post regarding job for backend IC designer. while only thing contrary to your requirement is that i have
try this one in ur source netlist (if it suits)
For dft concepts, I guess the books/foils by Vishwani agarwal
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Hello friends, An informative is launched. And, if you have time have a look and provide your valuable sugggestions to improve the site. Team,
asic flow: RTL coding-> RTL simulation-> synthesis->dft insert->formal->STA->gate simulation->backend flow
i m searching job in vlsi front end asic digital design flow. i have completed 6th month training in vlsi front end and my project based on dft if any one can help me, please help me. my email id:- phone no :- 09379085298
1) Synthesize your RTL into a netlist using a synthesization tool like design compiler. 2) If you are looking at doing dft, you can perform the dft at this point of time. 3) Import the scan inserted netlist into the place and route tool you are using along with the relevant timing libraries and timing constraint files. This is just the overvie
hi can any upload some matirial related to ET (cadnece dft tool )encounter test.......